Diagnosing my fatigue

I am always feeling tired and weak, even after a good night's sleep. I occasionally get a very "downy" mood that makes doing everything a lot harder where I am constantly zoning out of whatever I am doing. I can only keep my focus for so little. I am wondering anxiety could get this far or could it be a chronic fatigue disorder? More details below:

20 years old / 189 cm / 73 kg / been suffering from anxiety for over 4 years now / never took any medication before or consulted a psychiatrist.

This means a lot to me, Please read the entire thing I really need the help and I don't know where to start. I honestly don't know what's wrong with me and this lack of energy and concentration(constant zoning out) is destroying my life.

Just some background about my past few years, since my question is rather broad.

I have been dealing with anxiety for almost 4 years now. It has developed into weight loss, social anxiety, constant shortness of breath, irregular heartbeats, palpitations when I am laying in bed, sleeping disorders and other insignificant "things".I dropped from an obese teen at the age of 16, to underweight 6 months ago. I had to drop out of college because I just couldn't keep up with it, went back to my parent's place, took a semester off where I got myself back on my feet and transferred to another university to complete my studies. This is my first week in the semester and I need to make my parents proud, meaning I can’t disappoint them again but this "thing" is in my way and I am finding it very hard to keep up with it. I did a hair mineral analysis after my first panic attack (3 years ago, the test was because I convinced myself I had a potassium deficiency), and the doctor said I had a significant drop in zinc and a minor drop in iron. I did the thyroid glands test (we have a family history of it) and it also turned out negative. What's wrong with me, could this be due to my mental state or could it be from some underlying chronic disorder?

My current state and other details :

I got rid of my eating disorder, and the heart palpitations when I started consuming coffee excessively and jogging daily. I would say I am fit, I go for daily jogs in the morning (40-50 mins 6 min/km), BUT I still suffer from severe sleeping disorders and overall fatigue throughout the day and most importantly lack focus and energy. My social anxiety isn't as bad but I still have trouble expressing how I feel, people think I am emotionless sometimes when I am not, I just can’t, for example, laugh out loud no matter how funny something is.

Thanks in advance, hope I didn't miss anything. Any help would very much be appreciated.